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Management of open bite that developed during treatment for internal derangement and osteoarthritis of the temporomandibular joint.

Arai C, Choi JW, Nakaoka K, Hamada Y, Nakamura Y - Korean J Orthod (2015)

Bottom Line: Then, the mandibular second premolars were extracted and comprehensive orthodontic treatment was performed to establish a Class I molar relationship with distalization of the maxillary arch and to eliminate anterior crowding.Following treatment, her facial profile improved and a functional and stable occlusion was achieved without recurrence of the TMJ symptoms.These results suggest that orthodontic intrusion of the molars is one of the safer and less stressful alternatives for the management of open bite due to degeneration of the condyles caused by ID and OA of TMJ.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthodontics, School of Dental Medicine, Tsurumi University, Yokohama, Japan.

ABSTRACT
This case report describes the orthodontic treatment performed for open bite caused by internal derangement (ID) and osteoarthritis (OA) of the temporomandibular joint (TMJ). A Japanese woman, aged 31 years and 11 months, referred to our department by an oral surgeon had an open bite with clockwise rotation of the mandible and degeneration of the condyle. The overbite was corrected through intrusion of the maxillary and mandibular molars using mini-screw implants to induce counterclockwise rotation of the mandible. Then, the mandibular second premolars were extracted and comprehensive orthodontic treatment was performed to establish a Class I molar relationship with distalization of the maxillary arch and to eliminate anterior crowding. Following treatment, her facial profile improved and a functional and stable occlusion was achieved without recurrence of the TMJ symptoms. These results suggest that orthodontic intrusion of the molars is one of the safer and less stressful alternatives for the management of open bite due to degeneration of the condyles caused by ID and OA of TMJ.

No MeSH data available.


Related in: MedlinePlus

Computed tomography images of the left condyle. The white arrow illustrates osteophytes.
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Figure 2: Computed tomography images of the left condyle. The white arrow illustrates osteophytes.

Mentions: However, the patient's TMJ symptoms did not improve and deteriorated further. In addition, osteophyte-like degenerative changes appeared in the left condyle (Figure 2). Consequently, visually guided TMJ irrigation and open TMJ surgery were performed, following which her symptoms resolved. However, bilateral degeneration of the condyles during treatment resulted in open bite with clockwise rotation of the mandible. The open bite and condyles were monitored for a year to rule out deleterious changes (Figure 1B). Subsequently, the patient was referred to the Department of Orthodontics for the correction of open bite.


Management of open bite that developed during treatment for internal derangement and osteoarthritis of the temporomandibular joint.

Arai C, Choi JW, Nakaoka K, Hamada Y, Nakamura Y - Korean J Orthod (2015)

Computed tomography images of the left condyle. The white arrow illustrates osteophytes.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4446375&req=5

Figure 2: Computed tomography images of the left condyle. The white arrow illustrates osteophytes.
Mentions: However, the patient's TMJ symptoms did not improve and deteriorated further. In addition, osteophyte-like degenerative changes appeared in the left condyle (Figure 2). Consequently, visually guided TMJ irrigation and open TMJ surgery were performed, following which her symptoms resolved. However, bilateral degeneration of the condyles during treatment resulted in open bite with clockwise rotation of the mandible. The open bite and condyles were monitored for a year to rule out deleterious changes (Figure 1B). Subsequently, the patient was referred to the Department of Orthodontics for the correction of open bite.

Bottom Line: Then, the mandibular second premolars were extracted and comprehensive orthodontic treatment was performed to establish a Class I molar relationship with distalization of the maxillary arch and to eliminate anterior crowding.Following treatment, her facial profile improved and a functional and stable occlusion was achieved without recurrence of the TMJ symptoms.These results suggest that orthodontic intrusion of the molars is one of the safer and less stressful alternatives for the management of open bite due to degeneration of the condyles caused by ID and OA of TMJ.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthodontics, School of Dental Medicine, Tsurumi University, Yokohama, Japan.

ABSTRACT
This case report describes the orthodontic treatment performed for open bite caused by internal derangement (ID) and osteoarthritis (OA) of the temporomandibular joint (TMJ). A Japanese woman, aged 31 years and 11 months, referred to our department by an oral surgeon had an open bite with clockwise rotation of the mandible and degeneration of the condyle. The overbite was corrected through intrusion of the maxillary and mandibular molars using mini-screw implants to induce counterclockwise rotation of the mandible. Then, the mandibular second premolars were extracted and comprehensive orthodontic treatment was performed to establish a Class I molar relationship with distalization of the maxillary arch and to eliminate anterior crowding. Following treatment, her facial profile improved and a functional and stable occlusion was achieved without recurrence of the TMJ symptoms. These results suggest that orthodontic intrusion of the molars is one of the safer and less stressful alternatives for the management of open bite due to degeneration of the condyles caused by ID and OA of TMJ.

No MeSH data available.


Related in: MedlinePlus